Changes between Version 7 and Version 8 of developers-meeting-20100602


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Timestamp:
06/02/10 17:37:56 (11 years ago)
Author:
paul
Comment:

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  • developers-meeting-20100602

    v7 v8  
    55= Participants = 
    66 
     7Tigran: pools, NFS 
     8 
     9Antje: looked at old tickets several tickets needing an answer.  Coming around with a big stick. 
     10 
     11Tanja: tickets, reading about NFS spec. Want our NFS server to work in a federated NFS deployment. 
     12 
     13Gerd: visited DESY, tried to learn about NFS 4, wrote replacement for gPlazma cell + small stuff. 
     14 
     15Dmitry: mostly looked at ticket. 
     16 
     17Timur: wrote configuration parser for PAM style ... factories.  Started working on implementaiton of strategy 
     18 
     19Jan: fought on username/pw plugin, web-admin work.  PNFS migration to Chimera. 
     20 
     21Paul:  
     22 
     23Owen: parser for layout.conf.  Applies diffs to layout.conf.  Can parse site-info.def now.  About 80% done now.  Should be submitting some code at end of the week.  Other task is EMI certification.  Unfortunately had another 3 test suites dumped that doesn't work at DESY.  Other task is migration of our gLite hosts onto a new virtualisation service. 
    724 
    825 
     
    1936No questions until we get through everyone :) 
    2037 
     38= Adapters in FTP = 
     39 
     40CDF system: security scanners would cause  
     41 
     42detect that the connection isn't from a pool and close the connection. 
     43 
     44For the pool, this is something you can do, but one cannot  
     45 
     46Clients connect directly but pools queue, so this would fix  
     47 
     48Luckily there is already MoverProtocolv2 send a message mover back to the door.  We can extend this to also report source ip of the pool. 
     49 
     50You can have a race-condition between pool connect and pool's message arriving: if the message is too slow then   
     51 
     52We could have a token between pool and door, so that door sends token to the pool and will only accept a connection with this token sent as first n-bytes. 
     53 
     54We could share the same server socket on the door for all pools. 
     55 
    2156= Plans for patch-releases = 
    2257 
     
    2661 
    2762Timur requests feedback on backporting patch [http://rb.dcache.org/r/1796 RB #1796] to production branches. 
     63 
     64Tigran says it isn't urgent, so not back-porting. 
    2865 
    2966= Trunk activity = 
     
    3572=== kpwd === 
    3673 
     74Jan: moved the kpwd to commons directory to use it.  There are legacies classes that are dependencies of kpwd parser. 
     75 
     76We don't have doors depending on kpwd.  The KpwdLoginStrategy is the only dependency. 
     77 
     78Yes, we do need kpwd parser as some sites  
     79 
     80If we just want to use kpwd ... 
     81 
     82Do we use what's already in dCache or do we write a new. 
     83 
     84Plugins should go in gPlazma module. 
     85 
     86Can you update kpwd parser to remove  
     87 
     88Commons is probably not the right location. 
     89 
     90To show the true independence of gPlazma, separate module for plugins and package as separate JARs. 
     91 
     92Tigran and Jan to look into it tomorrow. 
     93 
    3794=== parser and configuration classes === 
    3895 
    3996Timur asks whether we should discuss the gPlazma parser and configuration classes: [http://rb.dcache.org/r/1922 RB #1922]. 
    4097 
     98Timur: I don't think it's controversial. 
     99 
     100Multiple parsers because we hope to support the old gPlazma.policy file format. 
     101 
    41102=== Strategy interface === 
    42103 
    43104Timur says [http://rb.dcache.org/r/1927/ RB #1927] shows this is currently broken. 
     105 
     106We want the strategy to be aware of the linkage between  
    44107 
    45108= Issues from [wiki:developers-meeting-20100601 yesterday's Tier-1 meeting] = 
     
    49112PIC have deployed 1.9.20-rc1 
    50113 
     114 
    51115== Expired certificates == 
    52116 
    53117Doris reports problems. 
    54118 
     119GridFTP Create server-context for each connection 
     120 
     121Ticket to be assigned to Gerd. 
    55122 
    56123= Outstanding RT Tickets = 
     
    60127== [http://rt.dcache.org/Ticket/Display.html?id=5636 RT 5636]: [Fwd: Incident INC000000027923 has been assigned to you. Priority: Low. Description: how to delete a file in dcache] == 
    61128 
     129Not needed to be discussed. 
     130 
    62131= Review of RB requests = 
     132 
     133Please discard your patches. 
    63134 
    64135= DTNM = 
    65136 
    66 Proposed: same time, next week. 
     137Same time, next week.